Theoretical calculation of Flory-Huggins and scattering interaction parameters by means of the lattice fluid theory for PVME/PSD blends

Authors
Wen, GY Sun, ZY Yang, J An, LJ Jiang, ZH Wu, ZW
Citation
Gy. Wen et al., Theoretical calculation of Flory-Huggins and scattering interaction parameters by means of the lattice fluid theory for PVME/PSD blends, MACROMOL TH, 10(4), 2001, pp. 368-373
Citations number
40
Categorie Soggetti
Organic Chemistry/Polymer Science
Journal title
MACROMOLECULAR THEORY AND SIMULATIONS
ISSN journal
10221344 → ACNP
Volume
10
Issue
4
Year of publication
2001
Pages
368 - 373
Database
ISI
SICI code
1022-1344(20010516)10:4<368:TCOFAS>2.0.ZU;2-R
Abstract
By fitting the spinodals of poly(vinyl methyl ether)/deuterated polystyrene (PVME/PSD) systems, the adjustable parameters epsilon (12)* and delta epsi lon* in the Sanchez-Balasz lattice fluid (SBLF) theory could be determined for different molecular weights. According to these parameters, Flory-Huggi ns and scattering interaction parameters were calculated for PVME/PSD with different molecular weights by means of the SELF theory. From our calculati on, Flory-Huggins and scattering interaction parameters are both Linearly d ependent on the reciprocal of the temperature, and almost linearly on the c oncentration of PSD. Compared with the scattering interaction parameters, t he Flory-Huggins interaction parameters decreased more slowly with an incre ase in the concentration for all three series of blends.